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ManualsBrandsPololu ManualsStepper Motor ControllersT834 USB Multi-Interface 2.5-10.8V, 1.5A Stepper Motor Controller (Soldered)
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If you get a “Permission denied” error when trying to connect to the Tic, you should make sure to copy
the 99-pololu.rules file into /etc/udev/rules.d and then unplug the Tic and plug it back in again.
The install script normally takes care of installing that file for you.
If that does not help, you should try running lsusb to list the USB devices recognized by your
computer. Look for the Pololu vendor ID, which is 1ffb. You should also try running dmesg right after
plugging in the Tic to see if there are any messages about it.
3.3. Installing macOS software
To install the software for the Tic on a computer running macOS, follow these steps:
1. Download the Tic Software for macOS [https://www.pololu.com/file/download/pololu-
tic-1.5.0-macos.pkg?file_id=0J1402] (7MB pkg).
2. Double-click on the downloaded file to run it, and follow the instructions.
This Tic software consists of two programs:
• The Pololu Tic Control Center (ticgui) is a graphical user interface (GUI) for configuring the
Tic, viewing its status, and controlling it manually. You can run it by double-clicking on “Pololu
Tic Stepper Motor Controller” in your “Applications” folder, or by opening a Terminal and
typing ticgui .
• The Pololu Tic Command-line Utility (ticcmd) is a command-line utility that can do most of
what the GUI can do, and more. You can open a terminal and type ticcmd with no arguments
to see a summary of its options.
The source code for the software [https://github.com/pololu/pololu-tic-software] is available.
Software installation troubleshooting for macOS
If you get the error “command not found” when you try to run ticcmd or ticgui , then you should try
starting a new Terminal window. The installer for the Tic software adds a file named 99-pololu-tic in
the /etc/paths.d directory to make sure the Tic software gets added to your PATH, but the change
will not take effect until you open a new Terminal window.
If the Tic Control Center window is too big to fit on your screen properly, try setting the TICGUI_COMPACT
environment variable to Y before running the software. You can do this by running the command
TICGUI_COMPACT=Y ticgui in the Terminal. You could also add the line export TICGUI_COMPACT=Y to
your ~/.profile file to make the change permanent.
The Tic software only works on macOS 10.11 or later.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
3. Getting started Page 15 of 150